Click on image to view larger version.

Fig. 2. Effects of overexpression of Cyr61 and similarity with the phenotype
obtained following injection of antisense morpholino oligonucleotides. (A-C)
Control stage 21 (A), Xcyr61-(B) and MO1-injected (C) embryos. Note the
disruption of gastrulation. (D-F) Intra-blastocoelic injections of BSA (D) and
mouse Cyr61 (E,F). Note the similarity of the phenotypes in E,F to those in
B,C. (G-I) Analysis of isolated dorsal marginal zone regions highlights
defects in epiboly caused by overexpression (500 pg RNA; H) or downregulation
(I) of Xcyr61. Note that the endoderm in H and I is not covered by epidermis
(arrows). Scale bar in A:
0.4 mm for A-I.